JPS609214U

JPS609214U - Nonlinear choke coil

Info

Publication number: JPS609214U
Application number: JP10005683U
Authority: JP
Inventors: 河野　通男; 浜田　宗利
Original assignee: 富士通株式会社
Priority date: 1983-06-30
Filing date: 1983-06-30
Publication date: 1985-01-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図から第９図は従来の平滑回路用チョークコイルを
説明するための図であり、第１図はチョークコイル１０
の斜視図、第２図は第１図の矢印Ａ方向から側面図、第
３図は第２図の矢印Ｃ方向からみた平面図、第４図は第
３図の一対のＥ型コア１１．１２の単体平面図、第５図
は第４図のＤ−Ｄ’線断面図、第６図は第３図のボビン
１３の単体面図（但し、一部切欠き断面にて図示）、第
７図は第６図の矢印Ｆ方向からみた側面図、第８図は第
１図のチョークコイル１０の直流重畳時におけるインダ
クタンスＬの特性線図、第９図は第１図のチョークコイ
ル１０の出力電圧特性線図、そして、第１０図から第１
６図は本考案の実施例を説明するための図であり、第１
０図は本考案の非線形チョークコイル２０の斜視図、第
１１図は第１０図のＪ−Ｊ’線に沿ねた側面断面図、第
１２図は第１１図のに−に’線に沿った平面断面図、第
１３図は第１０図のボブン２３と埋設磁性体２５の斜視
図、第１４図は第１０図の非線形チョークコイル２０に
おける磁束の流れを示す図、第１５図は第１０図の非線
形チョークコイル２０の直流重畳時におけるインダクタ
ンスし特性曲線（点線）Ｐ２を従来例の特性曲線（実線
）Ｐｌと対比して示す線区、第１６図は第１０図の非線
形チョークコイル２０の出力電圧Ｖ。の特性曲線（点線
）Ｑ２を従来例の特性曲線（実線）Ｑ、と対比して示す
線図である。２０・・・・・・本考案の非線形チョークコイル、２１
゜２２・・・・・・Ｅ空コア、２１ａ、２２ａ・・・・
・・Ｅ空コアの中央脚、２１ｂ、　２１Ｃ，２２ｂ、　
２２Ｃ・・・・・・Ｅ空コアの外側脚、２３・・・・・
・ボビン、２３ａ・・・・・・ボビンの筒体部、２３ｂ
、２３Ｃ・・・・・・ボビンのフランジ部、２３ｄ・・
・・・・ボビンに形成された挿入溝、２４・・・・・・
巻線、２５・・・・・・埋設磁性体（筒状磁性体）、２
６・・・・・・充填材、Ｇ・・・・・・両中央脚２１ａ
。２２ａ先端相互間に形成されたギャップ（空隙）。1 to 9 are diagrams for explaining conventional choke coils for smoothing circuits, and FIG. 1 shows a choke coil 10.
2 is a side view taken in the direction of arrow A in FIG. 1, FIG. 3 is a plan view taken in the direction of arrow C in FIG. 2, and FIG. 4 is a pair of E-shaped cores 11. 12 is a single unit plan view, FIG. 5 is a sectional view taken along the line DD' in FIG. 4, FIG. 6 is a single unit plan view of the bobbin 13 in FIG. 7 is a side view seen from the direction of arrow F in FIG. 6, FIG. 8 is a characteristic diagram of the inductance L of the choke coil 10 in FIG. 1 when DC is superimposed, and FIG. Output voltage characteristic diagram and Fig. 1 to 1
Figure 6 is a diagram for explaining an embodiment of the present invention, and the first
0 is a perspective view of the nonlinear choke coil 20 of the present invention, FIG. 11 is a side sectional view taken along line J-J' in FIG. 10, and FIG. 13 is a perspective view of the bobbin 23 and buried magnetic body 25 of FIG. 10, FIG. 14 is a diagram showing the flow of magnetic flux in the nonlinear choke coil 20 of FIG. 10, and FIG. 16 is a line section showing the inductance characteristic curve (dotted line) P2 of the nonlinear choke coil 20 in the case of direct current superimposition in comparison with the characteristic curve (solid line) Pl of the conventional example. Output voltage V. FIG. 3 is a diagram showing a characteristic curve (dotted line) Q2 of the conventional example in comparison with a characteristic curve (solid line) Q of the conventional example. 20...Nonlinear choke coil of the present invention, 21
゜22...E empty core, 21a, 22a...
... Central leg of E empty core, 21b, 21C, 22b,
22C...E empty core outer leg, 23...
・Bobbin, 23a... Bobbin cylindrical body part, 23b
, 23C...flange part of bobbin, 23d...
...Insertion groove formed in the bobbin, 24...
Winding wire, 25... Buried magnetic body (cylindrical magnetic body), 2
6...Filler, G...Both central legs 21a
. 22a A gap (void) formed between the tips.

Claims

[Scope of utility model registration request]

A pair of E-empty cores having a central leg and a leg on the outside of the surface are brought into contact with each other so that the legs are in contact with each other to form a gap between the tips of the lost legs in the rain, and a cylindrical shape with a wire is wound around the outer periphery of both of these central legs. In the choke coil formed by inserting a bobbin, a cylindrical magnetic material is embedded inside the cylindrical peripheral wall itself forming the cylindrical part of the bobbin and arranged to surround the gap between the central legs. A nonlinear choke coil featuring: